diff options
Diffstat (limited to 'target/linux/brcm47xx/patches-3.3/080-MIPS-BCM47XX-rewrite-nvram-probing.patch')
| -rw-r--r-- | target/linux/brcm47xx/patches-3.3/080-MIPS-BCM47XX-rewrite-nvram-probing.patch | 183 |
1 files changed, 0 insertions, 183 deletions
diff --git a/target/linux/brcm47xx/patches-3.3/080-MIPS-BCM47XX-rewrite-nvram-probing.patch b/target/linux/brcm47xx/patches-3.3/080-MIPS-BCM47XX-rewrite-nvram-probing.patch deleted file mode 100644 index a271876fa9..0000000000 --- a/target/linux/brcm47xx/patches-3.3/080-MIPS-BCM47XX-rewrite-nvram-probing.patch +++ /dev/null @@ -1,183 +0,0 @@ ---- a/arch/mips/bcm47xx/nvram.c -+++ b/arch/mips/bcm47xx/nvram.c -@@ -3,7 +3,7 @@ - * - * Copyright (C) 2005 Broadcom Corporation - * Copyright (C) 2006 Felix Fietkau <nbd@openwrt.org> -- * Copyright (C) 2010-2011 Hauke Mehrtens <hauke@hauke-m.de> -+ * Copyright (C) 2010-2012 Hauke Mehrtens <hauke@hauke-m.de> - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the -@@ -23,69 +23,139 @@ - - static char nvram_buf[NVRAM_SPACE]; - -+static u32 find_nvram_size(u32 end) -+{ -+ struct nvram_header *header; -+ u32 nvram_sizes[] = {0x8000, 0xF000, 0x10000}; -+ int i; -+ -+ for (i = 0; i < ARRAY_SIZE(nvram_sizes); i++) { -+ header = (struct nvram_header *)KSEG1ADDR(end - nvram_sizes[i]); -+ if (header->magic == NVRAM_HEADER) -+ return nvram_sizes[i]; -+ } -+ -+ return 0; -+} -+ - /* Probe for NVRAM header */ --static void early_nvram_init(void) -+static void early_nvram_init_fill(u32 base, u32 lim) - { --#ifdef CONFIG_BCM47XX_SSB -- struct ssb_mipscore *mcore_ssb; --#endif --#ifdef CONFIG_BCM47XX_BCMA -- struct bcma_drv_cc *bcma_cc; --#endif - struct nvram_header *header; - int i; -- u32 base = 0; -- u32 lim = 0; - u32 off; - u32 *src, *dst; -+ u32 size; - -- switch (bcm47xx_bus_type) { --#ifdef CONFIG_BCM47XX_SSB -- case BCM47XX_BUS_TYPE_SSB: -- mcore_ssb = &bcm47xx_bus.ssb.mipscore; -- base = mcore_ssb->pflash.window; -- lim = mcore_ssb->pflash.window_size; -- break; --#endif --#ifdef CONFIG_BCM47XX_BCMA -- case BCM47XX_BUS_TYPE_BCMA: -- bcma_cc = &bcm47xx_bus.bcma.bus.drv_cc; -- base = bcma_cc->pflash.window; -- lim = bcma_cc->pflash.window_size; -- break; --#endif -- } -- -+ /* TODO: when nvram is on nand flash check for bad blocks first. */ - off = FLASH_MIN; - while (off <= lim) { - /* Windowed flash access */ -- header = (struct nvram_header *) -- KSEG1ADDR(base + off - NVRAM_SPACE); -- if (header->magic == NVRAM_HEADER) -+ size = find_nvram_size(base + off); -+ if (size) { -+ header = (struct nvram_header *)KSEG1ADDR(base + off - -+ size); - goto found; -+ } - off <<= 1; - } - - /* Try embedded NVRAM at 4 KB and 1 KB as last resorts */ - header = (struct nvram_header *) KSEG1ADDR(base + 4096); -- if (header->magic == NVRAM_HEADER) -+ if (header->magic == NVRAM_HEADER) { -+ size = NVRAM_SPACE; - goto found; -+ } - - header = (struct nvram_header *) KSEG1ADDR(base + 1024); -- if (header->magic == NVRAM_HEADER) -+ if (header->magic == NVRAM_HEADER) { -+ size = NVRAM_SPACE; - goto found; -+ } - -+ pr_err("no nvram found\n"); - return; - - found: -+ -+ if (header->len > size) -+ pr_err("The nvram size accoridng to the header seems to be bigger than the partition on flash\n"); -+ if (header->len > NVRAM_SPACE) -+ pr_err("nvram on flash (%i bytes) is bigger than the reserved space in memory, will just copy the first %i bytes\n", -+ header->len, NVRAM_SPACE); -+ - src = (u32 *) header; - dst = (u32 *) nvram_buf; - for (i = 0; i < sizeof(struct nvram_header); i += 4) - *dst++ = *src++; -- for (; i < header->len && i < NVRAM_SPACE; i += 4) -+ for (; i < header->len && i < NVRAM_SPACE && i < size; i += 4) - *dst++ = le32_to_cpu(*src++); - } - -+#ifdef CONFIG_BCM47XX_BCMA -+static void early_nvram_init_bcma(void) -+{ -+ struct bcma_drv_cc *cc = &bcm47xx_bus.bcma.bus.drv_cc; -+ u32 base = 0; -+ u32 lim = 0; -+ -+ if (cc->nflash.boot) { -+ base = BCMA_SOC_FLASH1; -+ lim = BCMA_SOC_FLASH1_SZ; -+ } else if (cc->pflash.present) { -+ base = cc->pflash.window; -+ lim = cc->pflash.window_size; -+ } else if (cc->sflash.present) { -+ base = cc->sflash.window; -+ lim = cc->sflash.size; -+ } else { -+ pr_err("No supported flash found\n"); -+ return; -+ } -+ -+ early_nvram_init_fill(base, lim); -+} -+#endif -+ -+#ifdef CONFIG_BCM47XX_SSB -+static void early_nvram_init_ssb(void) -+{ -+ struct ssb_mipscore *mcore = &bcm47xx_bus.ssb.mipscore; -+ struct ssb_chipcommon *chipco = &bcm47xx_bus.ssb.chipco; -+ u32 base = 0; -+ u32 lim = 0; -+ -+ if (mcore->pflash.present) { -+ base = mcore->pflash.window; -+ lim = mcore->pflash.window_size; -+ } else if (chipco->sflash.present) { -+ base = chipco->sflash.window; -+ lim = chipco->sflash.size; -+ } else { -+ pr_err("No supported flash found\n"); -+ return; -+ } -+ -+ early_nvram_init_fill(base, lim); -+} -+#endif -+ -+static void early_nvram_init(void) -+{ -+ switch (bcm47xx_bus_type) { -+#ifdef CONFIG_BCM47XX_SSB -+ case BCM47XX_BUS_TYPE_SSB: -+ early_nvram_init_ssb(); -+ break; -+#endif -+#ifdef CONFIG_BCM47XX_BCMA -+ case BCM47XX_BUS_TYPE_BCMA: -+ early_nvram_init_bcma(); -+ break; -+#endif -+ } -+} -+ - int nvram_getenv(char *name, char *val, size_t val_len) - { - char *var, *value, *end, *eq; |